Albert Benveniste, Ramine Nikoukhah, Alan S. Willsky.
Cover title.
Includes bibliographical references (p. 25-27).
Partially supported by the Air Force Office of Scientific Research. AFOSR-88-0032 Partially supported by the National Science Foundation. ECS-8700903 Partially supported by the US Army Research Office. DAAL03-86-K-0171